<!DOCTYPE html>
<html xmlns:th="http://www.w3.org/1999/xhtml">
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>hello </title>
</head>
<body>
<h2>hello <a th:text="${nickname}"></a> 欢迎登录 </h2>

</body>
</html>